Method: channels.editForumTopic

Edit forum topic; requires manage_topics rights.

Parameters:

Name	Type	Description	Required
channel	Username, chat ID, Update, Message or InputChannel	Supergroup	Optional
topic_id	int	Topic ID	Optional
title	string	If present, will update the topic title (maximum UTF-8 length: 128).	Optional
icon_emoji_id	long	If present, updates the custom emoji used as topic icon. Telegram Premium users can use any custom emoji, other users can only use the custom emojis contained in the inputStickerSetEmojiDefaultTopicIcons emoji pack. Pass 0 to switch to the fallback topic icon.	Optional
closed	Bool	If present, will update the open/closed status of the topic.	Optional
hidden	Bool	If present, will hide/unhide the topic (only valid for the “General” topic, `id=1`).	Optional

Return type: Updates

Can bots use this method: YES

MadelineProto Example (now async for huge speed and parallelism!):

if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$Updates = $MadelineProto->channels->editForumTopic(channel: $InputChannel, topic_id: $int, title: 'string', icon_emoji_id: $long, closed: $Bool, hidden: $Bool, );